Exam (elaborations)
QMB 3200 Exam.
- Course
- Institution
Exam of 6 pages for the course exam 1 qmb 3200 - Gary Bliss/ Ansel Diama at exam 1 qmb 3200 - Gary Bliss/ Ansel Diama (QMB 3200 Exam.)
[Show more]
Seller
Follow
denicetho
Content preview
QMB 3200 ExamData - ANS-facts and figures collected, analyzed, or summarized
Dataset - ANS-all the data collected in an analysis
Element - ANS-the entity on which data is collected
Variable - ANS-characteristic of interest of an element
Observation - ANS-all variables associated
Categorical - ANS-numeric or ordinal values of measurement
Quantitative - ANS-uses numeric measures
Cross Sectional - ANS-data collected at a similar point in time
Time Series - ANS-data collected over a series of time periods
Panel - ANS-combination of cross sectional and time series data
Descriptive Staistics - ANS-describes the data or variables
Population - ANS-set of all data/variables n statistical analysis
Sample - ANS-subset of the population
Statistical inference - ANS-uses data from a sample to make estimates and test
hypothesis about the characteristics of a population
Descriptive Analytics - ANS-describes what has happened in the past
Predictive Analytics - ANS-statistical models from he pas to predict the future or access
the impact of one variable on another
Prescriptive Analytics - ANS-uses models seeking to find an optimal solution (type of
optimization model)
, Volume - ANS-number of observations
Velocity - ANS-speed data is collected
Variety - ANS-forms of data are of different types
Veracity - ANS-reliability of the data generated
Data Mining - ANS-focuses on extracting predictive information from Big Data
Frequency Distribution - ANS-tabular summary of data showing the number of
observations in each of several non overlapping categories
Percent Frequency - ANS-relative frequency * 100
Relative Frequency - ANS-(frequency of class)/(n)
cumulative relative frequency - ANS-shows the proportion of items with values less than
or equal to the upper limit of each class
cumulative percentage - ANS-shows the percent of data with values less than or equal
to the upper limit
Crosstabulation - ANS-a tabular summary of data for two variables
Mean - ANS-average
=average(B:B)
Median - ANS-middle value
=median(B:B)
Mode - ANS-value with greatest frequency
=mode.sngl(B:B:)
Weighted Mean - ANS-used when observations have different weights
Geometric Mean - ANS-measure of location by finding the nth root of product of n
values
=geomean(C:C)
The benefits of buying summaries with Stuvia:
Guaranteed quality through customer reviews
Stuvia customers have reviewed more than 700,000 summaries. This how you know that you are buying the best documents.
Quick and easy check-out
You can quickly pay through credit card or Stuvia-credit for the summaries. There is no membership needed.
Focus on what matters
Your fellow students write the study notes themselves, which is why the documents are always reliable and up-to-date. This ensures you quickly get to the core!
Frequently asked questions
What do I get when I buy this document?
You get a PDF, available immediately after your purchase. The purchased document is accessible anytime, anywhere and indefinitely through your profile.
Satisfaction guarantee: how does it work?
Our satisfaction guarantee ensures that you always find a study document that suits you well. You fill out a form, and our customer service team takes care of the rest.
Who am I buying these notes from?
Stuvia is a marketplace, so you are not buying this document from us, but from seller denicetho. Stuvia facilitates payment to the seller.
Will I be stuck with a subscription?
No, you only buy these notes for $9.30. You're not tied to anything after your purchase.
Can Stuvia be trusted?
4.6 stars on Google & Trustpilot (+1000 reviews)
79223 documents were sold in the last 30 days
Founded in 2010, the go-to place to buy study notes for 14 years now